Thanks a lot john.. -----Original Message----- From: John W. Krahn [mailto:[EMAIL PROTECTED] Sent: 13 October 2005 15:48 To: Perl Beginners Subject: Re: how to find missing value.
Pant, Hridyesh wrote: > > From: John W. Krahn [mailto:[EMAIL PROTECTED] >> >> Jabir Ahmed wrote: >> >>>I need to know the best way to get a missing element >>>from an array. >>> >>>i have an array @a of size containing values 1 to 101 >>>with one value missing. >>> >>>eg: @a=qw( 1 2 3 4 5 6 8 9 10 .... 101); >>> >>>(the array is not sorted and its only to make it >>>easier to understand) >>> >>>now i need to find out the missing value i.e 7 . >> >> $ perl -le' >> my @x = 1 .. 101; >> my @y = ( 1 .. 53, 55 .. 101 ); >> >> my %z; >> @z{ @x } = (); >> delete @z{ @y }; >> print for keys %z; >> ' >> 54 > > I am new for perl and I am going through the perl reference. but I am > not able to understand below line > @z{ @x } = (); That is a hash slice and it is described in the "Slices" section of the perldata.pod file. perldoc perldata > Also could you please guide me where can I get these hidden topic about > perl's reference. Which hidden topic? Perhaps these will help: perldoc perl perldoc perltoc John -- use Perl; program fulfillment -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] <http://learn.perl.org/> <http://learn.perl.org/first-response> -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] <http://learn.perl.org/> <http://learn.perl.org/first-response>
